Fault code lookup

PowertrainP0483

Caution

Severity: Caution - get it checked when you can

Cooling Fan Rationality Check

32 brands affected · Generic SAE J2012 description.

Key terms: Catalytic converter: cleans the exhaust gases · EGR: exhaust gas recirculation, which cuts harmful gases · EVAP: the system that traps fuel vapour · Oxygen sensor: measures oxygen in the exhaust gas · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

1What it means in plain English

This range covers emissions control (EGR, EVAP, oxygen sensors and the catalytic converter), but some manufacturers also use P04 codes for oil-pressure, brake-fluid and coolant-level warnings.

2Common causes

  1. Clogged or faulty EGR valve
  2. EVAP system leak (hoses, canister, fuel cap)
  3. Faulty oxygen sensor
  4. Ageing catalytic converter
  5. Low oil, brake fluid or coolant (on some models)
  6. Wiring or connector fault

3Can I drive?

Caution · drive with care

Do not assume this code is safe to drive. Check the description: if it names oil pressure, brake fluid, coolant, or a brake fault, stop safely and have it diagnosed before driving. Emissions-only codes (EGR, EVAP, catalyst) should still be checked before an emissions or roadworthiness inspection.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 32

BrandCodeDescriptionSystem
Ashok Leyland CVP0483Cooling Fan Rationality Check SAEPowertrain
BAIC MotorP0483Fan Rationality Check BrandPowertrain
Mercedes-BenzP0483Cooling Fan Rationality Check SAEPowertrain
BMWP0483Cooling Fan Rationality Check BrandPowertrain
BYDP0483Pwmfan fault BrandPowertrain
CheryP0483PWMfan Fault BrandPowertrain
DaewooP0483Fan Rationality Check BrandPowertrain
DFFSP0483Fan Rationality Check BrandPowertrain
DFFXP0483Fan Rationality Check BrandPowertrain
DFXKP0483Fan Rationality Check BrandPowertrain
EOBDP0483Fläktlogikkontroll BrandPowertrain
GeelyP0483Fan Rationality Check BrandPowertrain
GMP0483Fan Rationality Check BrandPowertrain
Great WallP0483Fan Rationality Check BrandPowertrain
HafeiP0483Fan Rationality Check BrandPowertrain
HoldenP0483Cooling Fan System Performance BrandPowertrain
HyundaiP0483Cooling Fan Rationality Check SAEPowertrain
IsuzuP0483Cooling Fan Rationality Check SAEPowertrain
Land RoverP0483Fan performance BrandPowertrain
MaseratiP0483Fan Performance BrandPowertrain
MitsubishiP0483Fan control BrandPowertrain
OpelP0483Fan Rationality Check BrandPowertrain
PeugeotP0483Cooling Fan Rationality Check SAEPowertrain
ProtonP0483Fan control BrandPowertrain
SaabP0483Fan Rationality Check BrandPowertrain
MG (SAIC)P0483Fan Rationality Check BrandPowertrain
SprinterP0483Cooling Fan Rationality Check SAEPowertrain
SubaruP0483Cooling Fan Rationality Check Malfunction BrandPowertrain
SuzukiP0483Fan rationality check BrandPowertrain
TataP0483Fan Rationality Check BrandPowertrain
ToyotaP0483Input diagnostic GMV type C BrandPowertrain
VolkswagenP0483SAE: Fan Rationality Check BrandPowertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 7

These 7-character codes are manufacturer-specific variants of P0483 and may be reported by some scan tools.

BrandCodeDescriptionSystem
Mercedes-BenzP048300The electric fan has a malfunction. BrandPowertrain
SsangYongP048300PWM electric fan - motor overloaded BrandPowertrain
Mercedes-BenzP048307The electric fan has a malfunction. Mechanical Failure BrandPowertrain
Mercedes-BenzP048309Der elektrische Lüfter hat Funktionsstörung. Es liegt ein Bauteilfehler vor. BrandPowertrain
Mercedes-BenzP048314Der elektrische Lüfter hat Funktionsstörung. Es liegt ein Kurzschluss nach Masse oder eine Unterbrechung vor. BrandPowertrain
SprinterP048314Der elektrische Lüfter hat Funktionsstörung. Es liegt ein Kurzschluss nach Masse oder eine Unterbrechung vor. BrandPowertrain
Mercedes-BenzP048392The electric fan has a malfunction. The function or the instruction is faulty. BrandPowertrain

6Related codes

  • P0480 Cooling Fan 1 Control Circuit
  • P0481 Cooling Fan 2 Control Circuit
  • P0482 Cooling Fan 3 Control Circuit
  • P0484 Fan Circuit Current High
  • P0485 Fan Power/Ground Circuit
  • P0486 EGR Sensor B Circuit
  • P0487 EGR Throttle Control Circuit A /Open
  • P0488 EGR Throttle Control Circuit A Range/Performance
  • P0489 EGR A Control Circuit Low
  • P048A Exhaust pressure control valve 'A' stuck closed
  • P048B Exhaust Pressure Control Valve Position Sensor/Switch Circuit
  • P048C Exhaust Pressure Control Valve Position Sensor/Switch Circuit Range/Performance

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